Improved ice-pick



UNITED STATES PATENT OFFICE.

JOHN L. ROVE, OF NE\V YORK, N. Y., -ASSIGNOR TO FREDK. STEVENS, OF

' SAME PLACE.

IMPROVED ICE-PICK.

Specification forming part of Letters Patent No. 22,1103, dated December 21, 1858.

To @ZZ whom it may concern.-

Be it known that l, JOHN L. ROWE,0 New York, in the county of New York and State of New York, have invented a new and Improved Ice-Pick; and I do hereby declare that the following is a full and exact description of the saine, reference being had to thc accompanying drawings, and to the letters of reference marked thereon, making part of this speciiication.-

Figure l is a View of my improved ice-pick, in which A shows the handle; B, the pointed end; C, the shoulder upon which the handle falls, by which concussion the ice is broken; E, the knob by which the handle is attached to the lower portion of the instrument; Fthe rod. Fig. His a sectional drawing of the same, in which A shows the handle; B, the pointed end; O, the shoulder upon which the handle falls, by which concussion the .ice is broken; D, the spiral spring which, by being contracted and relaxed, causes the handle to fall with force upon the shoulder O; E, the knob by which the handle is attached to instruments; F, the rods. This view is intended to show the spring in its natural position. Fig.

III is a sectional view of the instrument, in

which A shows the handle; B, the pointed end; O, the shoulder; D, the spiral spring; E7 the knob; F, the rod. In this drawing the spring is shown contracted, and the handle A is also shown raised above the shoulder O.

The nature of my invention consists in constructing' an instrument which shall afford the party usingI it .to combine in one instrument the advantages usually obtained by two-namely, the use of the common ice-pick and a hammer or mallet.

My invention is not only a new article of manufacture, but one cheaper, better, and one workingmore surely.

To enable others skilled in the art to make and use my invention, l will proceed to describe its construction and operation.

I provide an iron rod F, the lower end of which is pointed and forms the pick B. Upon this rod the spiral spring D, Figs. ll and Ill, is placed, also, the shoulder O. The knob E screws tightly around the handle A and holds it.

Operation: In order to break ice with this instrument, the pointed end B is placed upon it, the handle Ais raised, and the spiral spring D is contracted, as shown in Drawing III. By releasing the hold upon the knob E the spring is relaxed and the weight of the handle A falls upon the shoulder C in such a manner and with such force' as to cause the ice to break.

l do not claim the handle, rod, or points, as these are well known; but

That l' do claim, and desire to secure by Letters Patent, is

The spiral spring D, in combination wit-h the handle A, rod F, and point B, as arranged, substantially as and for the purpose specied.

JOHN L. ROW/YE. 

